Enterasys Vertical Horizon VH-8G Specifications

9033640VERTICAL HORIZONVH-8GGIGABIT ETHERNET SWITCHMANAGEMENT GUIDE

2 Management Overview VH-8GIn-Band ConnectionsPrior to accessing the switch via a network connection, you must first configure it with a valid IP add

92 Virtual LANs (VLANs) VH-8GForwarding Traffic with Unknown VLAN TagsThis switch only supports 256 VLANs with VLAN IDs ranging from 1 to 2048, but t

9033640 Class of Service 93APPENDIX C. CLASS OF SERVICEClass of Service support on the VH-8G switch allows you to assign mission-critical data a high

94 Class of Service VH-8GFigure C-1 shows priority queuing operating within a switch. Frames entering the switch through ports 1 and 4 are tagged as

9033640 IP Multicast Filtering 95APPENDIX D. IP MULTICAST FILTERINGIGMP Snooping and IP Multicast FilteringThe Internet Group Management Protocol (IG

96 IP Multicast Filtering VH-8G

9033640 Index 1INDEXAaddress tableunicast, 60aging time, configuring, 75Auto-negotiation, configuring, 74BBootP, configuring, 76bridge MIB extensions,

2 Index VH-8Gpriorityport configuration, 45port information, 46traffic class, 44Rrestarting the system, 63Sserial portconfiguration, 17connections, 1

9033640 Index 3

9033640 VH-8G User Interface 32. VH-8G USER INTERFACEOverviewAccess is gained to the console menus by directly connecting a terminal to the console p

150183-102 R01

4 VH-8G User Interface VH-8GUser AccessOnce a direct connection to the console port or a Telnet connection is established, the login screen for the o

9033640 VH-8G User Interface 5Factory DefaultsTable 2-1 lists the default settings for switch configuration parameters. Each parameter can be changed

6 VH-8G User Interface VH-8GVirtual LANsAcceptable VLAN Frame Type AllConfigurable PVID Tagging YesGVRP DisabledUntagged VLAN Group Assignment 1VLAN

9033640 VH-8G User Interface 7Main MenuThe Main Menu is the first screen seen after successfully logging into the system. Figure 2-2 shows the Main M

8 VH-8G User Interface VH-8GDevice Control MenuPort Configuration Enables any port, enables/disables flow control, and sets communication mode to aut

9033640 VH-8G User Interface 9System Information MenuUse the System Information Menu to display a basic description of the switch, including contact

10 VH-8G User Interface VH-8GDisplaying System Information Use the System Information screen to display descriptive information about the switch, or

9033640 VH-8G User Interface 11Displaying Switch Version Use the Switch Information screen to display hardware/firmware version numbers for the switc

12 VH-8G User Interface VH-8GManagement Setup MenuAfter initially logging onto the system, adjust the communication parameters for your console to en

9033640 VH-8G User Interface 13Changing the Network Configuration Use the Network Configuration menu to set the bootup option, configure the switch’s

14 VH-8G User Interface VH-8GIP Configuration Use the IP Configuration screen to set the bootup option, or configure the switch’s IP parameters. The

9033640 VH-8G User Interface 15IP Connectivity Test (Ping) Use the IP Connectivity Test to see if another site on the Internet can be reached. The s

16 VH-8G User Interface VH-8GHTTP Configuration Use the HTTP Configuration screen to enable/disable the on-board Web server, and to specify the TCP

9033640 VH-8G User Interface 17Configuring the Serial Port You can access the on-board configuration program by attaching a VT100 compatible device

18 VH-8G User Interface VH-8GAssigning SNMP ParametersUse the SNMP Configuration screen to display and modify parameters for the Simple Network Manag

9033640 VH-8G User Interface 19Configuring Community NamesThe following figure and table describe how to configure the community strings authorized f

20 VH-8G User Interface VH-8GConfiguring IP Trap ManagersThe following figure and table describe how to specify management stations that will receive

9033640 VH-8G User Interface 21Console Login Configuration Use the Management Setup: Console Login Configuration to restrict management access based

Notice9033640 iNOTICEEnterasys Networks reserves the right to make changes in specifications and other information contained in this document without

22 VH-8G User Interface VH-8GDownloading System Software Using TFTP Protocol to Download Over the NetworkUse the TFTP Download menu to load software

9033640 VH-8G User Interface 23Saving the System ConfigurationUse the Configuration Save & Restore menu to save the switch configuration settings

24 VH-8G User Interface VH-8GConfiguring Management AccessUse the Management Configuration menu to define which VLAN has management access to the swi

9033640 VH-8G User Interface 25Configuring the SwitchThe Device Control menu is used to control a broad range of functions, including port configurat

26 VH-8G User Interface VH-8G802.1Q VLAN Base InformationDisplays basic VLAN information, such as VLAN version number and maximum VLANs supported.802

9033640 VH-8G User Interface 27Configuring Port Parameters Use the Port Configuration menus to set or display communication parameters for any port o

Viewing the Current Port ConfigurationThe Port Information screen displays the port type, status, link state, and flow control in use, as well as the

9033640 VH-8G User Interface 29Using the Spanning Tree AlgorithmThe Spanning Tree Algorithm can be used to detect and disable network loops, and to p

30 VH-8G User Interface VH-8GParameter Default DescriptionSpanning Tree ProtocolEnabled Enable this parameter to participate in an STA compliant netw

9033640 VH-8G User Interface 31Configuring STA for PortsThe following figure and table describe STA configuration for ports. Figure 2-24. Spanning T

Noticeii 9033640

32 VH-8G User Interface VH-8GViewing the Current Spanning Tree ConfigurationThe Spanning Tree Information screen displays a summary of the STA inform

9033640 VH-8G User Interface 33Displaying the Current Bridge STAThe parameters shown in the following figure and table describe the current Bridge ST

34 VH-8G User Interface VH-8GDisplaying the Current STA for PortsThe parameters shown in the following figure and table are for port STA Information.

9033640 VH-8G User Interface 35The rules defining port status are:• A port on a network segment with no other STA-compliant bridging device is always

36 VH-8G User Interface VH-8GUsing a Mirror Port for AnalysisYou can mirror traffic from any source port to a target port for real-time analysis. You

9033640 VH-8G User Interface 37Configuring Port Trunks Port trunks can be used to increase the bandwidth of a network connection or to ensure fault r

38 VH-8G User Interface VH-8GYou can use the Port Trunking Configuration screen set up port trunks as shown below:Figure 2-29. Port Trunking Configu

9033640 VH-8G User Interface 39IGMP Multicast FilteringMulticasting is used to support real-time applications such as video conferencing or streaming

40 VH-8G User Interface VH-8GConfiguring IGMPThis protocol allows a host to inform its local switch/router that it wants to receive transmissions add

9033640 VH-8G User Interface 41Configuring Broadcast Storm ControlUse the Broadcast Storm Control Configuration screen to enable broadcast storm cont

9033640 Table of Contents iiiTABLE OF CONTENTS1. MANAGEMENT OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Con

42 VH-8G User Interface VH-8GConfiguring Bridge MIB ExtensionsThe Bridge MIB includes extensions for managed devices that support Traffic Classes, Mu

9033640 VH-8G User Interface 43Bridge Settings Traffic Class* Multiple traffic classes are supported by this switch as indicated under Bridge

44 VH-8G User Interface VH-8GConfiguring Traffic ClassesIEEE 802.1p defines up to 8 separate traffic classes. This switch supports Quality of Service

9033640 VH-8G User Interface 45Port Priority ConfigurationThe default priority for all ingress ports is zero. Therefore, any inbound frames that do n

46 VH-8G User Interface VH-8G802.1P Port Traffic Class InformationThis switch provides two priority levels with weighted fair queuing for port egress

9033640 VH-8G User Interface 47Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch to any of up to 256

48 VH-8G User Interface VH-8G802.1Q VLAN Current Table InformationThis screen shows the current port members of each VLAN and whether or not the port

9033640 VH-8G User Interface 49802.1Q VLAN Static Table ConfigurationUse this screen to create a new VLAN or modify the settings for an existing VLAN

50 VH-8G User Interface VH-8GFor example, the following screen displays settings for VLAN 2, which includes tagged ports 1-4, and forbidden port 8. F

9033640 VH-8G User Interface 51Port Assignment VLAN ConfigurationUse this screen to configure port-specific settings for IEEE 802.1Q VLAN features. F

iv Table of Contents VH-8GDisplaying the IP Multicast Registration Table . . . . . . . . . . . . . . . 61Configuring Static Unicast Addresses. . . .

52 VH-8G User Interface VH-8GMulticast Router Port InformationYou can use the Multicast Router Port Information screen to display the ports on this s

9033640 VH-8G User Interface 53Static Multicast Router Port ConfigurationYou can use the Static Multicast Router Port Configuration screen to assign

54 VH-8G User Interface VH-8GIGMP Member Port ConfigurationYou can use the IGMP Member Port Configuration screen to assign ports that are attached to

9033640 VH-8G User Interface 55Port Security ConfigurationUse the Port Security Configuration screen to enable and configure port security for the sw

56 VH-8G User Interface VH-8GMonitoring the SwitchThe Network Monitor Menu provides access to port statistics, RMON statistics, IP multicast addresse

9033640 VH-8G User Interface 57Displaying Port StatisticsPort Statistics display key statistics from the Ethernet-like MIB for each port. Error stati

58 VH-8G User Interface VH-8GDisplaying RMON Statistics Use the RMON Statistics screen to display key statistics for each port from RMON group 1. (RM

9033640 VH-8G User Interface 59Parameter DescriptionDrop Events The total number of events in which packets were dropped due to lack of resources.Rec

60 VH-8G User Interface VH-8GDisplaying the Unicast Address Table The Address Table contains the MAC addresses and VLAN identifier associated with ea

9033640 VH-8G User Interface 61Displaying the IP Multicast Registration TableUse the IP Multicast Registration Table to display all the multicast gro

9033640 Table of Contents vAPPENDIX B. VIRTUAL LANS (VLANS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89VLANs and Frame Tagging . .

62 VH-8G User Interface VH-8GConfiguring Static Unicast AddressesUse the Static Unicast Address Table Configuration screen to manually configure host

9033640 VH-8G User Interface 63Resetting the SystemSelect the System Restart Menu under the Main Menu to reset the switch. The reset screen includes

64 VH-8G User Interface VH-8G

9033640 Configuring & Monitoring the Switch 653. CONFIGURING & MONITORING THE SWITCHCommon TasksThe switch console menus allow you to modify

66 Configuring & Monitoring the Switch VH-8GSetting Password ProtectionThe VH-8G switch is factory-configured with administrator access rights to

9033640 Configuring & Monitoring the Switch 67Assigning an IP AddressTo assign an IP address to the switch, do the following:1. Select Managemen

68 Configuring & Monitoring the Switch VH-8GSetting SNMP Management AccessAccess to the VH-8G switch through SNMP is controlled by community name

9033640 Configuring & Monitoring the Switch 69Configuring Port MirroringYou can mirror the traffic being switched on any port for the purposes of

70 Configuring & Monitoring the Switch VH-8GDownloading Via the Serial PortA serial download is the easiest method to upgrade the VH-8G switch so

9033640 Configuring & Monitoring the Switch 71Downloading Via TFTPTo perform a TFTP download, you must first configure the VH-8G switch. This con

vi Table of Contents VH-8G

72 Configuring & Monitoring the Switch VH-8GConfiguring Spanning Tree ParametersThe VH-8G switch supports the IEEE 802.1D Spanning Tree Protocol.

9033640 Configuring & Monitoring the Switch 73Configuring VLANsA virtual LAN (VLAN) is a group of devices on one or more LANs that are configured

74 Configuring & Monitoring the Switch VH-8GConfiguring Port OperationYou can configure switch ports for operational parameters such as auto-nego

9033640 Configuring & Monitoring the Switch 75Configuring the Unicast Address TableThe Unicast Address Table allows you to designate forwarding t

76 Configuring & Monitoring the Switch VH-8GSetting a Default GatewayThe default Gateway parameter defines the IP address of a router or other ne

9033640 Configuring & Monitoring the Switch 77Configuring Port TrunksYou can configure up to four port trunks on the VH-8G switch. Each trunk can

78 Configuring & Monitoring the Switch VH-8G

9033640 SNMP Management 794. SNMP MANAGEMENTThe SNMP ProtocolSNMP (Simple Network Management Protocol) is a communication protocol designed specifica

80 SNMP Management VH-8GThere are three main operations defined in SNMP:• GET operations read information from the managed device, such as those used

9033640 SNMP Management 81This MIB reports information about the protocols and network interfaces supported on the agent itself, as well as other gen

9033640 Management Overview 11. MANAGEMENT OVERVIEWConfiguration OptionsFor advanced management capability, the Enterasys Networks’ Vertical Horizon

82 SNMP Management VH-8GIEEE 802.1Q (Q-MIB)This MIB includes the set of managed objects as defined in the IEEE 802.1Q VLAN standard. This MIB provide

9033640 Spanning Tree Concepts 83APPENDIX A. SPANNING TREE CONCEPTSGeneralThe IEEE 802.1D Spanning Tree Protocol resolves the problems of physical lo

84 Spanning Tree Concepts VH-8GSpanning Tree Protocol in a NetworkFigure A-1 illustrates the use of an VH-8G switch to establish an effective Spannin

9033640 Spanning Tree Concepts 85Spanning Tree Protocol ParametersSeveral configuration parameters control the operation of the Spanning Tree Protoco

86 Spanning Tree Concepts VH-8GSpanning Tree Protocol OperationWhen the Spanning Tree Protocol is enabled for the first time or when there is a chang

9033640 Spanning Tree Concepts 87There are five (5) states that the ports can be in for spanning tree:• Blocking: A port in this state does not parti

88 Spanning Tree Concepts VH-8G

9033640 Virtual LANs (VLANs) 89APPENDIX B. VIRTUAL LANS (VLANS)VLANs and Frame TaggingThe VH-8G switch supports IEEE 802.1Q-compliant virtual LANs (V

VH-8G VLAN ConfigurationVLAN operation on the VH-8G is enabled by default. Therefore, all frames are transferred internally through the switch with a

9033640 Virtual LANs (VLANs) 91Forwarding Tagged/Untagged Frames Ports can be assigned to multiple tagged or untagged VLANs. Each port on the switch